Watch One Woman Model 100 Years of Engagement Rings in Under 3 Minutes

, but Mode's latest 100 Years of Fashion video is proof that the whole "diamonds are forever" thing is real. But while diamond engagement rings have long been en vogue, the way the stone is presented has changed: From the lacy white-on-white look of the 1910s to 2010's "halo" mounting, see all the variations that emerged over the last century.